15.4.1 The design and arrangement of the operating
compartment, including location and layout of the individual workstations,
shall ensure the required field of vision for each function.
15.4.2 The craft's operating compartment shall
not be used for purposes other than navigation, communications and
other functions essential to the safe operation of the craft, its
engines, passengers and cargo.
15.4.3 The operating compartment shall be provided
with an integrated operating station for command, navigation, manoeuvring
and communication and so arranged that it can accommodate those persons
required to navigate the craft safely.
15.4.4 The arrangement of equipment and means
for navigation, manoeuvring, control, communication and other essential
instruments shall be located sufficiently close together to enable
both the officer in charge and any assisting officer to receive all
necessary information and to use the equipment and controls, as required,
while they are seated. If necessary, the equipment and means serving
these functions shall be duplicated.
15.4.5 If a separate workstation for supervision
of engine performance is placed in the operating compartment, the
location and use of this workstation shall not interfere with the
primary functions to be performed in the operating station.
15.4.6 The location of the radio equipment shall
not interfere with the primary navigational functions in the operating
station.
15.4.7 The design and layout of the compartment
from which the crew operate the craft and the relative positions of
the primary controls shall be assessed against the essential operational
manning level. Where minimum manning levels are proposed, the design
and layout of the primary and communication controls shall form an
integrated operational and emergency control centre from which the
craft can be controlled under all operational and emergency events
by the operating crew without the necessity for any crew member to
vacate the compartment.
15.4.8 The relative positions of the primary controls
and the seats shall be such that each operating crew member, with
the seat suitably adjusted and without prejudicing compliance with 15.2, can:
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.1 without interference, produce full and unrestricted
movement of each control both separately and with all practical combinations
of movement of other controls; and
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.2 at all workstations, exert adequate control
forces for the operation to be performed.
15.4.9 When a seat at a station from which the
craft may be operated has been adjusted so as to suit the occupant,
subsequent change of seat position to operate any control shall not
be acceptable.
15.4.10 In craft where the Administration considers
the provision of a safety belt necessary for use by the operating
crew, it shall be possible for those operating crew members, with
their safety belts correctly worn, to comply with 15.4.4 except in
respect of controls which it can be shown will only be required on
very rare occasions and which are not associated with the need for
safety restraint.
15.4.11 The integrated operating station shall
contain equipment which provides relevant information to enable the
officer in charge and any assisting officer to carry out navigational
and safety functions safely and efficiently.
15.4.12 Adequate arrangements shall be made to
prevent passengers from distracting the attention of the operating
crew.